Tooth brush.



TOOTH BRUSH.

APPLICATION man DEC. 15. 1914.

Wi t names JOHN C. FESER, OF BROOKLYN, NEW YORK.

TOOTH-BRUSH.

Specification of Letters Patent.

Patented J an. 2, 1917.

Application filed December 15, 1914. Serial No. 877,314.

hereby declare the following to be a full,

clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make. and use the same.

This invention relates to improvements in tooth brushes.

The principal object of the invention is to provide a novel and improved toothbrush with which the front and backs of teeth can be effectively cleaned at the same time.

Another object is to provide a simple device of this character which is cheap in construction, effective in operation and which can be manipulated easily.

Another object is to provide a tooth brush from which the bristles can be easily removed to be cleaned, orreplaced, w en worn.

Other objects and advantages wi 1 be apparent from the following description when taken in connection with the accompanying.

drawings.

In the drawings: Figure 1 is a plan view of the improved tooth brush showing the same in operative position, Fig. 2 is an enlarged plan view of the tooth brush, Fig. 3 is a side elevation of the same, and Fig. 4 is an enlarged section on the line 4-4 of Fig. 2. r

Referring particularly to the accompanying drawing, 10 and 11 represent a pair of flat arcuate strips which are disposedin concentric relation, the convexed face of the strip 10 and the concaved face of the strip 11 being provided with threaded sockets 12. Bristle tufts 13 are'provided with metal or rubber stems 14 provided with external threads for reception in the threaded sockets 12. By this construction the tufts of bristles can be readily removed from the members 10 and 11 when it is desired to. clean the bristles or when it is desired to replace them with new ones.

It will be noted that the tufts of the strips 10 and 11v have their ends terminating close together, each tuft of one strip extending toward a point intermediate the ends of two of the tufts on the opposite strip. An arcuate plate 15 is secured at its ends to the under sides of the strips 10 intermediate the ends thereof and connects and holds the strips 10 and 11 in proper spaced relation. This strip is arched to avoid engagement with the teeth when the brush is in use. Pivotally connected to the under side of the strip 11 is a handle member 16 which is adapted to be swung so as to extend first toyyard one end. of the brush and then toward the other according to the side of the mouth in which the-brush is being used.

What is claimed is:

A tooth brush comprising a pair of arcuate members arranged concentrically in a common plane, the confrontin faces of said members carrying bristle tu ts an arched bar connected at its ends to the respective members and bridging over the space therebetween, and a handle connected to the member carrying the bristles for operating on the outer surfaces of the teeth, said handle extending in a direction that is subst'antially tangential to said member.

In testimony whereof, I afiix my signature, in the presence of two witnesses.

JOHN C. FESER. Witnesses ARTHUR BAUER, JOHN ERMT. 

